Liquid dispensing apparatus



' Jan- 23, 1940- c. w. SWEITZER LIQUID DISPENSING APPARATUS Filed March 24, 1938 3 Sheets-Sheet 1 INVENTOR ZV'Z' Z ATTORNEY Jan. 23, 1940. w. SWEITZER 2,187,368

v LIQUID DISPENSING APPARATUS Filed March 24, 1938 s Sheets-Sheet 2 3 j J 3 \E N H al al;

lNV ENTOR ATTORNEY C. W. SWEITZER ING APPARATUS 3 Sheets-Sheet 3 Filed March 24, 1958 INV ENTOR OMS wezz zer r I I I ATTORNEY Jan. 23, 1940.

LIQUID DISPENS Patented Jan. 23, 1940 UNITED STATES PATENT OFFlCE 8 Claims.

This invention relates to liquid dispensing apparatus, and it is primarily an object of the invention to provide a dispenser of this kind which is readily portable as by being supported upon the body of a person.

It is also an object of the invention to provide an apparatus of this kind which can be employed with equal facility in the dispensing of carbonated or uncarbonated liquids as well as liquids of diiferent temperatures ran'gingfrom cold to hot.

The invention has as a further object to provide a pump for discharging liquid from the apparatus and wherein provision is made for delivering to the liquid'within the pump carbon dioxide for carbonating the liquid and for lowering the temperature thereof so that the liquid'when delivered from the dispenser or apparatus will be suitable as a cooling beverage for human consumption.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved liquid dispensing apparatus whereby certain important is advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

. The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein:

Figure l is a view in top planof a dispensing apparatus constructed in accordance with an embodiment of my invention;

' Figure 2 is a view in rear elevation of the dispenser or apparatus as illustrated in Figure 1;

Figure 3 is a sectional view taken substantially on the line 3--3 of Figure 2 looking in the direction of the arrow;

Figure 4 is a transverse sectional View taken substantially on the line 4--4 of Figure l with certain of the parts in elevation;

Figure 5 is a transverse sectional View taken substantially on the line 5--5 of Figure 1;

Figure 6 is an enlarged view partly in section and partly in elevation illustrating detailed features of the pump and the means for maintaining the pumpin desired workingvposition;

I Figure '7 is an enlargedfragmentary sectional View illustrating a slightly modified form of invention; v

Figure 8 is a fragmentary view partly in section and partly in elevation illustrating certain details of construction of the container.

As disclosed in the accompanying drawings, i denotes a container of desired capacity and which is preferably of a relatively narrow elongated type curved from end to end providing a convex front wall and a concaved rear wall to facilitate the container being carried in suspension from the shoulders of a person The rear wall of the container adjacent to its opposite ends and also closely adjacent to its top and bottom is provided with the loops or brackets 35 permitting desired connection with the container of shoulder straps.

While I refer to the container l as being adapted to be carried by a person, I do not wish to be understood as limiting myself in this respect as the container may be readily and conveniently supported in various ways without departing from the scope of the invention The walls of the container are of a double type and are maintained in desired assembled relation as disclosed in the accompanying drawings by the interposed spacerstrips I 3. The double walls have a filler 28 of desired insulation material, such as spun glass, rock wool or the like. The central portion of the. top wall 2 of the container I is provided with a filling opening defined by an-annular member 6 and with'which coacts a removable lid or plug d. This lid or plug '4 interlocks in a conventional manner with an interrupted threaded lug 5 carried by the inner face of the annular member or rim 6. The lid or plug 4 carries a suitably positioned keyoperated lock for coaction with the annular member or rim 6 for holding the applied lid or plug 4 against 1 r unauthorized removal.

Extending within the container i:through the top wall 2 thereof and preferably adjacent to an end ofthe topwall is a cup-like receptacle H. The upper or open end portion of this receptacle vll is fixed to a surrounding collar which may be welded or otherwise rigidly secured to the outer surface of the top wall 2 and surrounding the opening in the top wall through which the receptacle H is inserted. The upper open end I 1 flange a flanged portion extending within the upper open end of the receptacle I I to provide increase surface for threaded engagement with the applied closure member or lid 8 or 3A.

Positioned within the bottom wall 3 of the container I is a pump cylinder I5 of desired dimensions and in which is mounted for rectilinear movement a piston head I'IA, said head being carried by the operating rod FL This rod I'I extends through the rear head 23 of the cylinderor barrel I5 and has associated therewith a conventional type of gland packing 24. This rod I? also extends outwardly beyond the adjacent end of the container I and said extended portion carries a knob I8 or re like whereby the piston I'IA may be operated when desired.

In Figure 6 of the drawings, it is to be noted that the portion 28 of the interior of the bottom wall 3 surrounding the gland packing 24 and for a desired distance inwardly therefrom, is free of the filler 23. Suitably positioned plates 2? are provided to assure this compartment or chamber as the portion 26 may be termed.

In communication with the front end 22 of the cylinder or barrel I5 is a pipe line or tube 25 which extends up through the top wall 2 and which upper portion is provided with a discharge spout 2| extending outwardly in advance of the front or convex wall of the container I. The rear portion of the cylinder or barrel I5 is engaged and held within a sleeve I5 with which the head 23 hereinbefore referred to has direct engagement. The top portion of this sleeve I6 is formed to provide an upstanding annular IfiA for threaded engagement with a flanged plate 25 brazed or otherwise secured to the under surface of the inner plate of the bottom wall 3. By this means the cylinder or barrel I5 is efiectively maintained in applied or working Position.

Disposed through the inner plate of the bottom wall 3 of the container I and through the plate 25 and the sleeve I5 is an opening I9 of desired dimensions and which affords communication between the interior of the container I and the interior of the cylinder or barrel I5. When the piston HA is fully retracted the opening I9 permits the liquid within the container I to flow into and fill the cylinder or barrel I5 in advance of the piston and, of course, upon forcing the piston I'IA toward the front end of the cylinder or barrel I5 the liquid therein will be caused to discharge out through the spout 2|.

Delivering within the cylinder or barrel I5 at a point in advance of but in close proximity to the opening I9 is a tube or pipe line I4 leading from and in communication with the upper portion of the receptacle II. This pipe I4 is housed within the walls of the container.

When it is desired to dispense a cool carbonated beverage, a supply of dry ice is placed within the receptacle II and the CO2 gas resulting from the evaporation of the dry ice will pass through the pipe or tube I I into the cylinder or barrel I5 to charge such fluid whereby the same is effectively carbonated and its temperature materially reduced so that when the beverage is discharged out through the spout 2| a refreshing beverage particularly suitable for warm weather will be delivered.

It is to be particularly noted that the liquid is charged while in the cylinder or barrel I5. This is highly important as it has been fully determined through use that the dry ice will last for a considerable period longer (about five times as long) as dry ice placed in a receptacle discharging direct into the container such as is disclosed in Patent #2,105,339 which issued January 11,

To prevent the gas delivered within the cylinder or barrel I5 also passing up through the opening I9 to charge the liquid within the container I, it is only necessary, after the piston I'IA has been fully retracted f or a period sufiicient to allow filling of the cylinder or barrel I5, to move the piston I'IA to a position between the opening I4 and the point of communication between the line or tube I4 and the cylinder or barrel I5. This position of the piston I'IA also serves to provide a means to prevent complete filling of the cylinder or barrel I5 until it is desired to dispense the beverage.

As is particularly illustrated in Figure '7, the line or tube I 4 extends a slight distance within the receptacle II and such portion is threaded to allow the application thereto of a screw cap 32 to shut oil? the communication between the receptacle II and the line or tube I4. This is of particular advantage when it is desired to use the container I in the dispensing of uncarbonated liquids and when used for such purpose the pump is not used but the contents of the container I are discharged through a suital'ily positioned spigot 33 of any desired or preferred type'. When the container I is used for the dispensing of cofifee the receptacle I I can be used to hold a supply of cream. When so used the lid or closure member EA will carry a conventional pump 29 embodying an operating member 30 and delivery nozzle 3|. The receptacle II can, of course, be used to contain other desired commodities for use in connection with uncarbonated liquids and in which event the cap 32 will be applied.

The outer or convex face of the container I at points spaced lengthwise thereof and extending substantially between the top and bottom is provided with guide members 34 to provide means to retain a placard or other advertising display matter in a position upon the container I whereby it will be conspicuous to the observer.

As is particularly illustrated in Figure 8, the inner shell of the walls of the container is preferably made into two sections, the adjacent ends of which are defined by outstanding butting flanges I2A welded or otherwise fixedly connected. The vertical spacer strips I3 are suitably cut away or notched to compensate for these flanges I 2A.

soldered, welded or otherwise fixedly secured to the outer surface of the container I and preferably at an end thereof closely adjacent to the bottom wall 3 is a bracket or adapter 36 with which is engaged in a conventional manner a cup dispensing rack 3'1 of any preferred construction and from which a paper cup 31A can be readily withdrawn to receive the liquid as dispensed from the container I. This rack comprises the usual glass tube or housing 38 for the cup stack to maintain the same clean and sanitary.

It is to be noted that the walls of the receptacle I I are imperforated so that the CO2 gas as given off by the dry ice is not received within the interior of the container I but such gas is delivered only to the portion of the liquid within the pump cylinder or barrel I5.

Should it be desired to carbonate the liquid within the container I it is only necessary to fully retract the piston IIA so that the interior of the container I and the cylinder or barrel I5 are in communication through the opening I 9.

It is also to be stated that with the apparatus supported. upon the body of v a-person, during the time such person is walking the resultant motion of the apparatus imparts a sloshing effect or action to the contents of the container I which further contributes to the carbonating effect of the dry ice in the body of the liquid carried by the container. Furthermore, the receptacle H being within the container l, allows during such sloshing action a considerable amount of the contents of the container to be drawn into intimate contact with the outer surface of the receptacle I l resulting in a cooling effect upon such liquid. In other words, the ordinary walking movement of a person carrying the apparatus assists both in carbonating and cooling the liquid in the container.

From the foregoing description it is thought to be obvious that a liquid dispensing apparatus constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the prin-- ciples and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim:

1. A liquid dispensing apparatus comprising a container, a pump for drawing off the liquid Within the container comprising a barrel having one end portion in communication with the container and the opposite end portion having a discharge, a piston working in the barrel, a receptacle for dry ice, and means for delivering the gas resulting from the evaporation of said dry ice within the barrel of the pump at a point between the discharge of the barrel and the communication of the barrel with the container.

2. A liquid dispensing apparatus comprising a container, a pump for drawing ofi the liquid within the container comprising a barrel having one end portion in communication with the container and the opposite end portion having a discharge, a piston working in the barrel, a receptacle for dry ice, and means for delivering the gas resulting from the evaporation of said dry ice within the barrel of the pump at a point between the discharge of the barrel and the communication of the barrel with the container, the delivery point of the gas within the barrel being closely adjacent to the communication between the barrel and 1 the container.

3. A liquid dispensing apparatus comprising a container, a pump for drawing off the liquid within the container comprising a barrel having one end portion in communication with the container and the opposite end portion having a discharge,

a piston working in the barrel, a receptacle for dry ice, and means for delivering the gas resulting from the evaporation of said dry ice within the barrel of the pump at a point between the'discharge of the barrel and the communication of the barrel with the container, said piston when in one position allowing liquid to flow into the barrel and when in a second position shutting off such flow.

4'. A liquid dispensing apparatus comprising a container, a receptacle for holding a supply of dry ice, a pump including a barrel, a piston working therein, and means for connecting the barrel to a wall of the container, said connection being so constructed and arranged to provide communication between the container and the barrel, said barrel having a discharge, and a pipe line leadi;:.;;

from the receptacle to the pump barrel and communicating therewith at a point intermediate the communication between the barrel and the container'and the discharge for the barrel.

5. A liquid dispensing apparatus comprising a container, a receptacle for holding a supply of dry ice, a pump including a barrel, 2. piston Working therein, means for connecting the barrel to a wall of the container, said connection being so constructed and arranged to provide communication between the container and the barrel, said barrel havinga discharge, and a pipe line leading from the receptacle to the pump barrel and communicating therewith at a point intermediate the communication between the barrel and container and-the discharge for the barrel, said receptacle extending within the container.

6. A liquid dispensing apparatus comprising a container, a receptacle for holding a supply of dry ice, a pump including a barrel, a piston working therein, means for connecting the barrel to a-wall of the container, said connection being so constructed and arranged to provide communication between the container and the barrel, said barrel. having a discharge, a pipe line leading from the receptacle to the pump barrel and communicating therewith at a point intermediate the communication between the barrel and container and the discharge for the barrel, said receptacle extending within the container, and means within the container for closing the same against flow therethrough.

7. A liquid dispensing apparatus comprising a ice, a pump including-a barrel, a piston working therein, means for connecting the barrel to a wall structed and arranged to provide cormnunication between the container and the barrel, said barrel having a discharge, and a pipe line leading from the receptacle to the pump barrel and communicating therewith at a point intermediate the communication between the barrel and the container.

between the pipeline and the barrel.

8. liquid dispensing apparatus comprising a container, a receptacle for holding a supply of dry ice, a pump including a barrel, a piston working therein, means for connecting the barrel to a wall of the container, said connection being so constructed and arranged to provide communication between the container and the barrel, said barrel I having a discharge, and a pipe line leading from the receptacle to the pump barrel and communicating therewith at a point intermediate the communication between the barrel and the container and the discharge for the barrel, the pipeline leading from the receptacle to the pump barrel being free of communication with the container except when the piston working within the barrel has been substantially fully retracted or advanced to a position beyond the point of communication between the pipe line and the barrel, the connection between the pump barrel and the container being adjacent to one end of the barrel and the discharge being at the opposite end portion of the barrel.

CHARLES W. SWEITZER.

container, a receptacle for holding a supply of dry 'of the container, said connection being so con- 

